Filler cap or closure cap opening warning device for storage tank, has cap provided with movement detecting device recording physical actions of cap and transmitting radio signals to receiving station, when cap is opened or closed

摘要

The device has a cap (1) e.g. filler cap, provided with a movement detecting device that is fixed on a storage tank. The detecting device detects the movement of the cap, records physical actions of the cap and transmits radio signals to a receiving station (2), when the cap is opened or closed. The receiving station receives the radio signals and transmits an alarm by different units e.g. audio.